The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1976
Filed:
Nov. 04, 1974
Klaus Gueldenpfennig, Penfield, NY (US);
Stromberg-Carlson Corporation, Rochester, NY (US);
Abstract
A universal answer arrangement for a PABX in which incoming trunk calls are automatically connected, when all operator positions are busy or unattended and equipped for universal answer service, to a pre-designated line circuit or, at night, to one or more selected operator position circuits. In response to the connection to an associated operator loop circuit, a programmable automatic dialing circuit transmits a programmable predetermined number to a local register which effects a switch-through from the incoming trunk to the designated line circuit. The operator loop circuit monitors the connection and releases from the call when the called line goes off hook. Advantageously, the night answer arrangement includes a PABX group hunting circuit which permits the incoming call to be connected to a second line circuit if the first line circuit is busy or to a tie line trunk to another PABX having a night attendant if all line circuits in the hunting group are busy or disabled.